Lid for temporary set up?

[Ju Aquataholic]

I've taken my daycare centres axolotls home for a few weeks so I can monitor the water temperature better - it got to 25C this weekend so home they came....

I've got them in an esky with ice bricks and a filter, but I wasn't sure about the lid - if I pop the lid on, I'm worried about air exchange. I'd be checking on them about every hour while I'm home but they might be left with the lid on for up to 10 hours while I'm sleeping or at work.

If I have the lid off, the water temp is likely to rise faster and there's the risk my strong girls will jump out. What's a possible solution?? Thanks!

 

[AxolotlChris]

Go to a DIY shop and buy some fine material mesh and lay it over the top, you can make it taught by weighting it either side of the container.

Something like this:

http://i.ebayimg.com/00/s/ODk5WDEzNDg=/z/8vQAAOSwGvhUB7eP/$_35.JPG?set_id=2